"It is with deep sadness that the family of Nancy Motes ... confirms that she was found dead in Los Angeles yesterday of an apparent drug overdose," her family said in a statement. "There is no official report from the Coroner's office yet. The family is both shocked and devastated."

Motes, the daughter of the actress' mother Betty Lou and stepfather Michael Motes, was the youngest sister of Julia and Eric Roberts, and the aunt of Emma Roberts.